Fixture for forming bearings



@dl 75 193%.. F, C, JQNEg ET AL 1,777,567

FIXTURE FOR FORMING BEARXNGS l Filed Dec. 2a, 1925 3 Shee-shz 1 @Mornagooct. 1, 1930.

F. c. JONES VE-r AL 1,777,567

FXTURE FOR,u FORMING BEARINGS Filed Deo. 2s, 1925 5 sheets-sheet 2 HSMct. 7; 1930. v F. c. JONES ET AL 1,2 77,567

FIXTURE FOR FORMING ABEARINGS Patented Oct. `7, 17930 UNITED *12STATE-1SPATENT olflflcll FREDERICK c. JONES AND WINFIELD sfENniiRIOH, orDETROIT, MIOHIGAMASSIGNORS TO BOIIN ALUMINUM a BRASS CORPORATION, orDETROIT, MICHIGAN, A CORPORA- TION oFlVlIGAN FIXTURE ron FORMINGV13eisernes p Application filed December 28, 1925,. `Serial No. 78,031.`

The invention relates `to i'netalvvorking and refers more particularlyto a fixture for forming bearing, bushing or like segments.

In the manufacture of bearings, bushings and the like, the bearingsarepi'eferably cast in cylindrical form from suitable material such asbrass, bronze, etc. `This cylindrical casting is preferably of a largerdiameter than desired in the `final product. The cy- `lindrical bearingis diametrically severed to produce two segmental bearing. members.k

The edges `of these members must thenv be `machined and with this invIeWtlie cylindricalcastings are made over size as aforesaid.v

Before this machining operation takes place,

`theradii of the bearing segments are reduced to the final desireddimension, this closing-in operation providing bearing segments ofgreater than semi-circular` shape in transverse cross section V4sothativhen the edgesV are ma!- chined a true semi-cylindrical bearingsegment of the desired radius Will beobtained.V `Thus, by reason of theclosing-in operation,

su'llicient material is aflordedat the edges of the bearing segments topermit machiningv of the edges. Before the closing-in operation,

`it was common practice to cast theA cylindrical bearings to theiinaldesired radial'dimension necessitating destroying one-half of thecastn ing,the cut being made so as to provide one of tlie..resulti1igsegments With sufficient material at the edges to permit machining tothe final semifcircular cross section, the other of the segments, beingless than a semi-circle in cross section, 4Was scrapped.

`inventionresides'inthe novel features of construction and combinationand` arrangements of parts as more fullyhereinafter described andclaimed. e

Referring to the accompanying drawings in which lilrefreferencecharacters indicate corresponding parts;

Figure l is aperspective view showing the fixture; Figure 2 is anelevation view of the saine looking at the left side as shown in Figure.1', Y

F igure is a plan view of the fixture;

Figure 5 is a detail view in ing the close-iii die; y

Figure 6 is adetail elevation view showing the close-iii die in raised ll stripper bars; and v Figure 7 a diagrammatic view illustrat ing thecross sectional shape of the `cylindrielevation showcal bearing segmentbefore and aftier the close-in operation.

In the drawings-reference character'A. represents the base which may besupported in any suitable manner such as by table or the like (notshown). Adjustably supported on the base is a 'loading platform B,headed fasteners 10 serving'to clamp the platfor-m`B to the base A. Theplatform ispreferabl'y` provided With longitudinal slots l1 engageableby the fasteners l0 so as to permit ad- Figure @is a front elevation`view there-` position and the Y' justinent of the platform Brelative tothe base A to accommodate any desired number of bearing segments.@represents an unloading platform, Wliich like the platform B, isadjustably secured to the base A by reason of the headed fasteners 12and slots 13.\ For guiding the cylindrical bearingror like segmentsduring` movement thereof, along the platform Btoward the platform C, Wehave provided ,the guidebars or strips 14 Which extend longitudina'llyatopposite f sides of the platforms Band C respectively.

These guide bars are preferably secured" to the respective platforms byreason of the headed fasteners l5 engageable in'slotsl whereby thevguide bars of each platform` B and C may be relatively adjusted so asto accommodate bearing segmentsoffvarying Widths. p i

Positioned between the platforms B and C, are the complementary bufferplates 17 and 17a, these latter plates being adapted to receive thebearing segments from the platform B for operation thereof bythereciprocatory close-in die D; In order to properly these square ends 31.

position the bearingr segments on the buffer plate 17 for operationthereon by the die D, the plates 17 and 17a are respectively providedwith the positioning and guide bars 18 as best shown in Figure 5, thesebars being secured to the plates 17 and 17a by suitable headed fasteners19. It will be noted that the positioningbars 1.8 `are provided` withouter curved surfaces. 20engageable with the inner wall of the bearingsegments so as not to interfere with the movement of the die D as thelatter is movedby any suitableV mechanism (not shown) into engagementwith the bearing segments for closing-in the spectively. Thus, byrotating the adjusting `members-24 the buffer plates 17 and 17? andconsequentlythe positioning-bars 18 may be adjusted toward or vaway fromeachA other. The brackets 23 may be slotted at 27, to provide forclamping the adjusting members in various positions of rotativeadjustment. 28 represents a suitable clamping bolt for forcing togetherthe slotted portions ofthe bracket 23 to produce the clamping action onthe adjustment members 24.

Secured tothe base A are the L-shaped .brackets 29, a pair of thesebrackets being located at. the front and rear of the fixture j as shownin Figure 1 for supporting the rods 30. The roc 30 are preferably formedwith the square ends 31, the brackets 29 being formed with suitableopenings for receiving respective brackets 29. Mountedon each of therods 30 is a pair of stripper brackets these brackets being fori'nedwith asuitable opening for receiving` the rods 30. 34 represents a pairof cross bars serving to connect a bracket 33 on each ot the rods 30 byreasonof the filler blocks 35 and fasteners 36. The brackets 33 areprovided with vertical slots 37 through which extend the stripper bars38.A is shown in' Figure 2, these bars are normally urged upwardlybyfreason of coil springs For positioning the bars 38 at`varying heightsin the slots 37,. ad-

' justing screws 40 are provided, these adjusting screws serving to fixthe upper-limit of travel of the stripper bars-38. The bars 38 are thuscapable of vertical adjustment so l as to clear bearing segments ofvarying radii.

Headed fasteners 32v serve to connect the ends of rods 30 with thev Theends of the stripper bars 38 are preferably provided witli the fasteners41 which serve to prevent longitudinal movement of the bars in the slots37. 42 represents set screws adjustable in the brackets 33 andengageabie with the rods 30 whereby the pairs ofr brackets connected bythe cross bars 33 and carrying the stripper bars 38 respectively maybemoved toward or away' from each other in order to accommodate bearingsegments of varying length. As shown in Fig- .ureV 6,v the stripper bars38 are located at opposite sides respectively of the path of Vmovementof the die D, the lower inner edges of the stripper bars slightlyoverlapping the respective ends of the cylindrical bearing or likesegments E so as to engage the bearing segments to strip or eject thesame from the die D.

The unloading platform C is provided with a transverse groove 43adjacent the outer edge thereof and slidable within this groove are theabutment brackets 44. As shown in Figure 2, the brackets are adjustabletoward or away from each other 'sliding in the groove V43, the bracketsbeing clamped'in various positions of adjustment by reason of theclamping fixtures 45 slidably engaging slots 46 of the unloadingplatform C. The abutment brackets 44 respectively carry abutment rod's47which are slidable therein and clamped thereto in various positionsofadjustment by reason ofthe set screw 48. f

rlhe operation of the fixture is as follows: The guide bars 14 areAadjusted to receive the bearing segments 'E therebetween as shown inFigure 3. vLikewise, the adjusting members 24 are actuated to limit thepositioningbars 18 relative to cach other so to accommodate and properlyposition the bearing segments E preparatory for operation thereon by theclosing-in die D. The stripper bars 38 are also relatively adjusted asshown in l1`jgure 6 so as to permit passage therebetween of the die -Dand to position the lower inner edges of the stripper bars in slightlyoverlapping relation with the opposite ends respectively of the bearingsegments E. The stripper bars 38 are also properly positioned verticallyin the slots 37 so as to position the bars 38 above the bearing segmentsE whereby they latter may be passed beneath these bars. Y

Referring to Figure 7 r we have shown in dotted lines E, somewhatexaggerated for purpose of illust-ration, the cylindrical bearing orlike segment before the close-in operation. After operation of theclose-in die D, the radius of the segmental bearing is decreased froin Rto R, the latter radius being desired in the iinal product. By reason ofthis close-in operation, the longitudinal edges of the bearing segmentare forced below the original diameter F-G so as to provide an cnAamount of material49 ofthe bearing segment E in excess-of a truesemi-cylinder. `Thus,

the edges ofthebearing segment 'E may then i be'machine `finished byremoving the material 49 so as'to finally produce a bearing segment ofYthe desired radius and of a truesemicylindrical shape.

, The bearing segments E are placed on the loading platform B preferablyarranged Y platform. f moved between the guide bars 14 andA around `thepositioning land guide bars 18 until the tandem as shown in Figure. 3aind`4,fthe ad- -jacent cylindrical segmentsfbeingrin contactingrelation. The operator thus moves the lineof ,bearing segments tovvard`the die D by exerting a pushing force on the bearing segment E lastpositioned on the loading The bearing segments are thus platforms B andC and the buffer plates 17 tand 17a are substantially filled. Theabutment rods 47 are positioned toward each other andaxially so as toengage the end of the line" of segmental hearings asshovvn irl-Figure.3, the rods 47 being axially' adjusted so `as to properly positionabearing segment in line with the vertical movement of the closesegmentat the end of the lineengaged by the in die D. With the parts in thisposition theV die D is causedto move downwardly into engagement with thealigned bearing segment so as to perform the close-in operationdecreasing'thefradius R of the bearing segment E to the radius R ofthejbearing segment as' illustrated in VFigure `7. On the return upwardstroke ofthe die D, the Ybearing segment E vvill 'be engaged bythestripper bars 38 so as to ejectthe bearing segmentfrom theV die D.

f The operator Will then remove the bearing rods 47 andthe Whole line ofbearing segments Will'be advanced from the loading plat-` form7 thelength of one of the bearing seg- `ments in order toplace the nextsegment in proper position for engagement and operation by theclose-indie D. As soon as the line of bearing segments is advanced, theoperator placeson the loading platform-at the beginning of thelineof-segments, another bearing segment E and the cycle is thusrepeated.

It will `be apparent that We have provided a xture for successiveoperationen a plurality-of bearing segments for closing-in the same, thebearing segments beingv guided in continuous fashion into properposition for the closing-in operation.` It will further be noted lthatvve have provided a fixture which is adjustable for accommodatingvaryingsize cylindrical bearing or like segments.

. l/Vhileit is believedfrom the foregoing description.,` the nature andadvantageof our invention Will be readily understood, Wedesire to haveit understood that We do not limit ourselves to What is herein shownvand described and that such changes maybe resorted fall Within "thescope of ing or like segments comprisinga recipro-` cable close-in die,and means for supporting and 'guiding-a `plurality "of the cylindricalsegmentsinto position successively for operation thereon by said die,\said supporting means affording a sliding vsupporting engage-rl Y mentWith the longitudinal edges `of the cylindrical segments.- i l l 3.Afixture for closing-1n cylindricallbearing or like segments comprisinga loading platform, an unloading platform, a recipro-f cable close-indie, meansfor guiding a plurality ofthejcylindrical segments arrangedtandem With adjacent cylindrical segments in contacting relat-induringfmovementthereof from the loadingto theunloading platform*7 saiddie beingpositioned for operation on the cylindrical segments' as theyare successively moved from the `loading to the unloading platform.`

ing'orlike segments comprising a reciprocable close-1n die, means forsupporting and guiding aplurality Vof theicylindrical segmentsv intoposition successively for operation there- "on by said die, and strippermechanism cooperating Withthedie and engageable With f the cylindricalsegment operated on by said die for stripping samefrom the latter. p

5.` A xture for closing-in cylindrical bearing or like segmentscomprising areciprocable close-in die, means for successively guiding aplurality of the cylindrical segments through a predetermined path intoposition beneaththe path of travel of said die. for

operation thereon by said die, and stripper mechanism cooperating withthe die and en- 'gageable With the cylindrical segment operated on bysaid die for stripping same from the latter. p

6. A fixture for closing-in cylindrical bearing or like segmentscomprising a loading platform, an unloading platfornna reciprocableclose-indie,` means for guiding Va plurality of the cylindrical segmentsduring movement thereof from the loading to the unloading platform, saiddiebeing positioned for operation on the cylindrical segments as theyare successively moved from the loading to the unloading platform, andstripper mechanism cooperating With the die and engage- 1"' isc oaf v"4. 'A fixture for closing-in cylindrical bear-"faimV able with thecylindrical segment operated on saine vfrom the by said die forstripping the latter.' i,

7. A fixture for Vclosing-in cylindrical bearing or like segmentscomprising a reciprocable close-in die,means for supporting and guid- 8.A fixture for closing-incylindrical bearing or like segments comprisinga loading platform, an unloading platform, a reciprocable close-indie,f1neans for guiding a plurality of the cylindrical segments-duringmovement thereofifrom the loading to the .unloading platform, said diebeing positioned for operation on the cylindricalsegments `as they aresuccessively moved .from the loading to the unloadingplatform, and apair of stripper bars respectively arranged on opposite sides of thepath of'movement of thediefor cooperating therewith'to eject thecylindrical segments therefrom.l f

9. A fixture for closing-in cylindrical bears ing or likesegmentscomprisingv a reciprocable close-in die, means for support-ingand guiding a plurality'. of the cylindrical segments into positionsuccessively for `operation Vjchereon'by said die, a pair of stripperbars respectively arranged on opposite sides of the path of movement ofthe die for cooperating therewith `tol eject theV cylindricalsegments'therefrom, said stripper bars extending transversely of saidcylindrical segments and above the same.

l0. Al fixture for closing-in cylindrical bearing or like segmentscomprising a reciprocable close-in die.y means for supporting andguiding a plurality ofV the cylindrical segments into. positionsuccessively for operation thereon by said die, a pair of stripper barsrespectively arranged oncopposite sides of the path of movement of thedie for cooperating therewith to eject .the cylindrical segmentstherefrom, said stripper bars extending transversely of said cylindricalsegments and above the same, and means'perniitting relative adjustmentof the stripper bars.

11.7A fixture for'closing-in cylindrical bearing or likesegmentscomprising la loading platform, an unloading platform, lareciprocable close-in die, means for guiding a plurality of thecylindrical segments during movement thereof from the lcz-iding to theunloading platform, said die being positioned for operationoii thecylindrical segments as they. are successively moved from the loading tothe unloading platform, said guiding means comprising Yrelativelyadjustable guide bars.

12. A fixture for closing-in cylindrical bearing or like segmentscomprising a recipiocable close-in die, means for supporting and guidinga plurality of the cylindrical segments into position successivelyforroperation thereon by said die, bars engageable interiorly of thecylindrical segments and cooperating with thedie for positioning thecylindrical segments and means for relatively ing width cylindricalsegments. Y 'i 13. "A close-in fixture for cylindrical bearing orlikesegments comprising a buffer plate adapted vto receive a cylindricalsegment, positioning means carried by the buffer plate and engageableinteriorly, of said cylindrical segment,'and a reciprocable close-in dieadapted for movement toward the buffer plate for operation on thecylindrical seg- Vmoving said bars for accommodating varyinent forsecuring the desired radial dimension thereof.

' 14. A close-in fixture lfor vcylindrical bearing or likesegmentscomprising a buffer platev adapted to receive a cylindrical segment,positioning means for properly locating the'c'ylindrical segment on thebuffer plate, a reciprocable close-in` die adapted for movement towardthe buffer plate foroperation on the cylindrical segment to secure thedesiredv radial dimension thereof, and means for `stripping thecylindrical segment fromfth'e die.

l5. Av close-in-fixture for cylindrical bearing or like segment-scomprising a buffer lplate adapted to receive fa cylindricalsegmentfpositioning means for properly locating the cylindrical segmenton the buffer plate, a reciprocable close-in die adapted for movementtoward the buffer plate for operation on the cylindrical segment tosecure the desired radial dimension thereof, and a pair of stripper barsrespectively arranged on opposite sides of thel path of movement of thedie for cooperating therewith to eject the cylindrical segmenttherefrom.

1G. A close-in fixture for cylindrical bearing or like segmentscomprising a buffer plate adapted to receive a cylindrical segment,positioning means for properly locating the cylindrical segment on" thebuffer plate, a reciprocable close-in die adapted for movement towardthe buffer plate for operation on t-he cylindricalr segment to securethe desired radial dimension thereof, a pair of stripper barsVrespectively arranged on opposite sides of the path of movement of thedie for cooperating therewith to eject the cylindrical segmenttherefrom, and means permitting relative adjustment of said stripperbars axially of the cylindricalsegment.

17. A close-in fixture for cylindrical bearing or like segmentscomprising a buffer plate adapted to receive a cylindrical segment,positioning means carried by the buffer plate and engageable interiorly,of said cylindrical segation thereon by said die, including rela-Vmembers relatively adjustable transversely of the cylindrical segments.

18, A fixture for closing-in cylindrical bearing or like segmentscomprising a reciprocable close-in die, means for supporting and guidinga plurality of the cylindrical segments into position successively foropertively adjustable members engageable with the longitudinal edges ofsaid cylindrical segments, and adjustable means cooperating With the diefor positioning the cylindrical j segments.

19. A fixture for closing-in bearing or like segments comprising aloading platform and unloading platform, a reciprocable close-in die,means for guiding a plurality of the cylindrical segments arrangedtandem with adjacent cylindrical segments in contacting relation duringmovement thereof from the' loading to the unloading platform, said.means including members positioned `upon said loading and unloadingplatforms and being adjustable relatively to one another` foraccommodating bearings of varying Widths. 1 Y

20. A fixture for closing-in cylindrical bearing or like segments,comprising a reciprocable close-in die, supporting means for the bearingsegments extending upon opposite sides of the die, and means upon thesupporting means for guidingrv a train of segments to and beyond the diewith adjacent segments in contacting relation, and means for accuratelypositioning the segments in alignment with the die to be operated onthereby.

21.A fixture for closing-in cylindrical bearing or like segmentscomprising a. re-

ciprocableclose-in die, supporting means for the bearing segmentsextending upon opposite sides of the die, means upon the supportingmeans for guiding a train of segmentsto and beyond said die withadjacent segments in contacting relation, and means cooperating with thebearing segments beyondV the die for arresting movement of the train ofsegments toposition a bearing segment in accurate alignmentVv with thedie to be operated on thereby. i

22. A fixture for closing-in cylindrical hearingv or like segmentscomprising spaced loading and unloading platforms arranged insubstantially the same plane and in alignment vvitlieach other, meansfor positioning a Vplurality of the cylindrical segments -in alignmentand `incontact-ing relation with each other onsaid loading and unloadingplatforms, and a reciprocable close-in die interposed between the twoplatformsxin a ciprocable close-in die positioned for operation upon thecylindrical `segments as they are successively moved from the loading tothe unloading platform, and means upon the unloading platformcooperating with the bearing segments thereon to accurately position thesegments upon the unloading platform in proper alignment With said die.

24. A fixture for closing-in cylindrical bearing or like segmentscomprising loading and unloading platforms, means for guiding aplurality of cylindrical segments with ad,- jacent segments incontacting relation during movement thereof along both of saidplatforms, a reciprocable'close-in die positioned for operation on thecylindrical segments as they are successively moved from the loading tothe unloading platforms, andmeans upon the unloading platform includinga.

FREDERICK C. JONES. VINFIELD S. ENDERICH.

' tures.

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